« Back to Advisory Circulars Main Page

97-2 - Data Base Standardization for the Global Positioning System (GPS) Overlay Program (Cancelled)

Cancellation Notes
Memo from AFS-400 Leslie Smith
Date Cancelled
January 04, 2012
Date Issued
November 19, 1993
Responsible Office

This advisory circular (AC) contains information and guidance to be used by data base vendors that develop data for use in the National Airspace System (NAS) for the non precision GPS overlay program. Most of the required data is readily available from existing documentation; however, additional waypoints may be required to ensure that aircraft fly the published, protected ground track of the existing standard instrument approach procedures(SIAP). This AC contains guidancew hich standardizes the development of these additionalw aypoints. This AC doesnot apply to localizer-based approaches